{
  "id": "cond-mat/0203038",
  "version": "v1",
  "published": "2002-03-02T15:05:43.000Z",
  "updated": "2002-03-02T15:05:43.000Z",
  "title": "Quantum Computation with Aharonov-Bohm Qubits",
  "authors": [
    "A. Barone",
    "T. Hakioglu",
    "I. O. Kulik"
  ],
  "comment": "23 pages, including 6 figures, laTEX",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "We analyze the posibility of employing the mesoscopic-nanoscopic ring of a normal metal in a doubly degenerate persistent current state with a third auxihilary level and in the presence of the Aharonov-Bohm flux equal to the half of the normal flux quantum $\\hbar c/e$ as a qubit. The auxiliary level can be effectively used for all fundamental quantum logic gate (qu-gate) operations which includes the initialization, phase rotation, bit flip and the Hadamard transformation as well as the double-qubit controlled operations (conditional bit flip). We suggest a tentative realization of the mechanism as either the mesoscopic structure of three quantum dots coherently coupled by mesoscopic tunnelling in crossed magnetic and electric fields, or as a nanoscopic structure of triple anionic vacancy (similar to $F_3$ centers in alkali halides) with one trapped electron in one spin projection state.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-03-02T15:05:43.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum computation",
      "aharonov-bohm qubits",
      "doubly degenerate persistent current state",
      "fundamental quantum logic gate",
      "third auxihilary level"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 23,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2002cond.mat..3038B"
    }
  }
}